WWE wrestling legend Chyna posted a rambling video to her YouTube channel from inside the apartment where she was found dead just days before her possible overdose this week.

The 45-year-old - whose body was found by a friend at her home in Redondo Beach, California, on Wednesday - took a bizarre 13-minute video of herself around 6.40 a.m Sunday and posted it online.

Chyna - real name Joan Marie Laurer - can be seen recording herself moments after she woke up, and speaks into the camera as she absently makes a smoothie, giving viewers curious health tips along the way.

Police are investigating suspicions the champion fighter died of an overdose,TMZ reported. Some prescription pills were found at the apartment but no illegal drugs, according to reports.

Speaking with a croaked voice, Laurer breaths heavily and slurs her words as she talks randomly about taking vitamins, being vegan and how friends were bringing food over for her later in the day.

Final moments: Wrestling legend Chyna took this video of herself on Sunday morning, before her body was found inside the same Redondo Beach apartment on Wednesday

Rambling video: Chyna is seen in the at-home footage talking nonsensically and slurring her words after waking up on Sunday. Police say she appeared to have been dead for some time when they found her body

At one point in the video she speaks about being 'passive aggressive' to one of her friends.

'(I've been) rude lately, but doing good. I've been having fun because I feel like I can express myself,' she says.

'Talk to my friends ... it's really been helping me a lot.'

After blending her smoothie for a few minutes and talking about what has gone into it, Laurer starts singing The Fish Heads song before gulping the whole thing down in one go, straight from the food processor.

It was just three days later that a friend found her not breathing inside the condo, with police suspecting she had been dead for a day or two before that.

The 'true icon's' death was announced in a statement on Wednesday night, which was posted on her official Twitter account and signed by 'Felix'.

It said: 'It is with deep sadness to inform you today that we lost a true icon, a real life superhero... the 9th wonder of the world has passed away. She will live forever in the memories of her millions of fans and all of us that loved her.'

Laurer's manager, Anthony Anzaldo, said she was found 'lying peacefully' in her bed.

She had a well-documented history with drugs and was hospitalized after overdosing on sleeping pills in 2010.

It came two years after Laurer appeared on Celebrity Rehab With Dr Drew in 2008 to discuss her battle with drugs and her fractured relationship with her mother.

WWE wrestling legend Chyna has died at the age of 45 after a possible overdose, reports claim. She is seen here, left, in an undated photo, and right in 1999

Chyna, whose real name was Joan Laurer, is pictured here with Jay Leno during an appearance on The Tonight Show in October 2000

Scene: Laurer's cause of death has yet to be revealed, but she was found dead in her Redondo Beach, California apartment, and there were no signs of foul play

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Redondo Beach Police Officers said they attended the house after receiving a 911 call from a friend.

They said: 'The Redondo Beach police received a 911 call from a friend of the apartment unit resident that the female inside was not breathing.

'The friend told [police] that the female had not answered her phone in a few days, and went to the location to check on her welfare.

'Officers arrived on scene and discovered a deceased female inside the location. From the preliminary investigation, it appears that the deceased passed away prior to being discovered by the friend.'

There are no indications or signs that the death was a result of foul play, officers added.

Based on what police found inside the apartment, there is also no indication of a suicide, TMZ reported.

It also appears that the renowned fighter passed away a 'day or two' before her body was found on Wednesday.

Hundreds of people in the industry last night paid tribute to the star, who they described as a 'pioneer'.

Stephanie McMahon, who plays a lead role in the organization, wrote on Twitter: 'I just heard the tragic news that @ChynaJoanLaurer has passed.

'She was truly a pioneer in our industry and she will be missed.'

Hundreds of people in the industry last night paid tribute to the star, who they described as a 'pioneer'

Legendary wrestler Kevin Nash, who performed under the ring name Diesel, said: 'May the peace you were seeking put you at rest my friend. So sorry for not seeing the pain... We've shared so much.'

And Ken Shamrock, a MMA fighter turned professional wrestler, added: 'RIP Chyna great memories good times you will always be a great part of my life during a great time of my life you will be missed' (sic).

Footage also emerged Thursday of what was one of Laurer's final interview. Given to CBS Detroit in early March, she talks about her recent return to the US following years living in Japan and discussed whether she thinks she will be inducted into the WWE Wall of Fame.

There have been reports for years that she was discluded from the list of wresters because of her sex tape, which was released without her permission.

'I feel like I would be doing a disservice to myself and to the fans if I didn't at least try and get my voice heard,' she told the network.

'And then if there's resolution, wonderful. That's what I would love. But if there's not resolution, hey I tried.'

Final interview: Chyna - Joan Laurer - is seen here in early March this year. It is believed to be one of, if not her final, interview

'Ninth Wonder Of The World': Chyna's profile on WWE brands her 'the most dominant female competitor of all time'. She also dabbled in acting, wrote an autobiography, and graced the pages of Playboy

Groundbreaking woman: The muscle-bound Chyna is seen here at the American Music Awards in LA in November 2003

'It was in the midst of a tumultuous relationship, an abusive relationship.'

However, 1 Night In China went on to sell 100,000 copes, and Laurer went on to perform in six porn movies between 2004 and 2013.

Her most infamous porno, Avengers XXX, saw her play a She-Hulk.

Champion: Laurer pictured lifting Eddie Guerrero, one of the top male wrestlers who she famously dominated

Among her many accolades, she boasted victories over leading male wrestlers such as Chris Jericho and Eddie Guerrero. Chyna, real name Joan Laurer, is pictured here with Michael 'Crash' Lockwood in 2000

Laurer said that entering the porn industry was about taking control of the image that was taken from her.

'There was a perception that was trying to be pushed on me that I was going to be shameless, and a slutty whore, and it was going to be disgusting,' she told Vice.

'I decided to make lemonade out of lemons. That's when I went to (porn company) Vivid. I felt safer with Vivid than I would have with the next boyfriend.'

'I had to get my mindset to this place to say ''Ok, I am going to do this, and I am going to make it my own''.'

However, in 2012, Laurer passed out on three different days while making appearances at the Exxxotica Porn Expo and had to be hospitalized.

She released a statement at the time, saying that she had 'over done it' and mixed cold medicine with a glass of wine.

The New York-born wrestler was the first woman to win the WWE intercontinental championship, and was the first woman to compete in the organization's Royal Rumble contest

'It was amazing, it was a really great, spiritual journey for me. [And] it was amazing yesterday to come home. I didn't know what the vibe would be, it doesn't even feel like I've been gone that long.'

Laurer wrote an autobiography, If They Only Knew, which made it onto the New York Times bestseller list.

According to her website, a documentary was made, or being made, about the woman behind the headlines.

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